Zero-day vulnerability in Siemens SIMATIC WinCC

Hardcoded credentials
CVE-2010-2772

The vulnerabiilty was used by Stuxnet malware together with CVE-2012-3015.

Vulnerability details

Advisory: SB2010072103 - Hardcoded credentials in Siemens SIMATIC WinCC and PSC 7 SCADA systems

Vulnerable component: Siemens SIMATIC WinCC

CVE-ID: CVE-2010-2772

CVSSv3 score: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-259 - Use of Hard-coded Password

Description:

The vulnerability allows a local user to obtain hardcoded credentials.

The vulnerability exists due to usage of hardcoded password to access back-end database. A local user can obtain password and gain unaithorized access SCADA system.

Successful exploitation of the vulnerability may allow an attacker to gain complete control over the industrial process.

Note: this vulnerability is being actively exploited by the Stuxnet malware.

Known APT campaigns:

Iranian Nuclear Facilities breach

The breach was identified in summer 2010 by VirusBlokada antivirus company from Belarus, who was called to investigate computers in Iranian nuclear facilities.

External links:

https://en.wikipedia.org/wiki/Stuxnet
https://support.industry.siemens.com/cs/document/43876783/simatic-wincc-simatic-pcs-7%3A-information...
https://www.cnet.com/news/siemens-warns-stuxnet-targets-of-password-risk/

About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.